package com.atguigu.lease.web.admin.custom.converter;

import com.atguigu.lease.model.enums.BaseEnum;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.ConverterFactory;
import org.springframework.stereotype.Component;

@Component
public class StringToBaseEnumConverterFactory implements ConverterFactory<String, BaseEnum> {

//    @Override
//    public <T extends BaseEnum> Converter<String, T> getConverter(Class<T> targetType) {
//        return new Converter<String, T>() {
//            @Override
//            public T convert(String source) {
//
//                for (T enumConstant : targetType.getEnumConstants()) {
//                    if (enumConstant.getCode().equals(Integer.valueOf(source))) {
//                        return enumConstant;
//                    }
//                }
//                throw new IllegalArgumentException("非法的枚举值:" + source);
//            }
//        };
//    }


    @Override
    public <T extends BaseEnum> Converter<String, T> getConverter(Class<T> targetType) {
       return  new Converter<String, T>() {
           @Override
           public T convert(String source) {
               T[] enumConstants = targetType.getEnumConstants();
               for(T enumConstant:enumConstants){
                   if(enumConstant.getCode().equals(Integer.valueOf(source))){
                       return  enumConstant;
                   }
               }
               throw new IllegalArgumentException("非法的枚举值:" + source);
           }
       };
    }
}

